• 輸入ゆにゅう — import
• 輸出ゆしゅつ — export
• 輸送ゆそう — transport / shipping
• 密輸みつゆ — smuggling
• 空輸くうゆ — air transport
• 陸輸りくゆ — land transport
• 輸血ゆけつ — blood transfusion
• 輸入品ゆにゅうひん — imported goods

輸 combines 車 (vehicle) with elements suggesting movement and transition. Historically, it referred to transporting goods with carts or wagons. Today, it retains the idea of conveyance — in contexts from shipping and trade to blood transfusion.